The Descartes class comprised two protected cruisers of the French Navy built in the early 1890s; the two ships were Descartes and Pascal. They were ordered as part of a naval construction program directed at France's rivals, Italy and Germany, particularly after Italy made progress in modernizing its own fleet. The plan was also intended to remedy a deficiency in cruisers that had been revealed during training exercises in the 1880s. As such, the Descartes-class cruisers were intended to operate as fleet scouts and in the French colonial empire. The ships were armed with a main battery of four 164.7 mm (6.48 in) guns supported by ten 100 mm (3.9 in) guns and they had a top speed of 19 knots.

Descartes was the lead ship of the Descartes class of protected cruisers built for the French Navy in the 1890s. The Descartes-class cruisers were ordered as part of a construction program directed at strengthening the fleet's cruiser force. At the time, France was concerned with the growing naval threat of the Italian and German fleets, and the new cruisers were intended to serve with the main fleet, and overseas in the French colonial empire. Descartes was armed with a main battery of four 164.7 mm (6.5 in) guns, was protected by an armor deck that was 20 to 40 mm thick, and was capable of steaming at a top speed of 19 knots.